Answer:
Head=3cm
Body=12cm
Tail=5cm
Step-by-step explanation:
H= head
B=body
T=tail
B =4h
T=2+h
Total length= 20cm
20cm = b+t+h
20cm= 4h+(2+h)+h
20cm= 6h+2
18cm=6h
3cm=h
Body 4(3)=12
Tail= 2+3= 5
Answer:
5x - 1
Step-by-step explanation:
Simply add the binomials together.
(3x - 2) + (2x + 1)
Combine like terms.
[3x + 2x] = 5x
[-2 + 1] = 1
5x + 1

This is the solution of the equation, where a=1, b=-5, c=7
So the discriminant is :
b^2-4ac=25-4*7= -3
The square root of -3 is non-real, this both solutions are non-real.
Answer:
100
Step-by-step explanation:
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